class_docstr: Tests sequence handling utilities.
code: def test_hhsearch(self):
      seq_utils.hhsearch(
          self.dataset_file,
          database=self.database_name,
          data_dir=self.data_dir,
      )
      results_file = os.path.join(self.data_dir, "results.a3m")
      hhr_file = os.path.join(self.data_dir, "example.hhr")
      with open(results_file, "r") as f:
          resultsline = next(f)
      with open(hhr_file, "r") as g:
          hhrline = next(g)
  
      assert hhrline[0:5] == "Query"
      assert resultsline[0:5] == ">seq0"
      os.remove(results_file)
      os.remove(hhr_file)
  
file_path: deepchem/deepchem/utils/test/test_sequence_utils.py
imports: import unittest
  import os
  import platform
  from deepchem.utils import sequence_utils
label_desc: Use image node_id 2 for calling the TestSeq obj's underlying member method code with example usage: obj.test_hhsearch() without return types